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2010

Generalized and doubly generalized LDPC codes with random component codes for the binary erasure channel

8 years 3 months ago
Generalized and doubly generalized LDPC codes with random component codes for the binary erasure channel
In this paper, a method for the asymptotic analysis of generalized low-density parity-check (GLDPC) codes and doubly generalized low-density parity-check (D-GLDPC) codes over the binary erasure channel (BEC), based on extrinsic information transfer (EXIT) chart, is described. This method overcomes the problem consisting of the impossibility to evaluate the EXIT function for the check or variable component codes, in situations where the information functions or split information functions for component codes are unknown. According to the proposed technique, GLDPC codes and D-GLDPC codes where the generalized check and variable component codes are random codes with minimum distance at least 2, are considered. A technique is then developed which finds the EXIT chart for the overall GLDPC or D-GLDPC code, by evaluating the expected EXIT function for each check and variable component code. This technique is finally combined with the differential evolution algorithm in order to generate some...
Enrico Paolini, Marc P. C. Fossorier, Marco Chiani
Added 22 May 2011
Updated 22 May 2011
Type Journal
Year 2010
Where TIT
Authors Enrico Paolini, Marc P. C. Fossorier, Marco Chiani
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